water tube boiler superheater

Industrial boilers

Product thermal capacity: 4-35 t/h

Working pressure: 1.0-2.5 MPA

Outlet temperature: 184-350 ℃

Available fuel: natural gas, coke oven gas, bio-gas,liquid propane gas, diesel, heavy oil, light oil, crude oil

Available industries: Petroleum, chemical, chemical fiber, pharmaceutical, textile printing and dyeing, building materials, wood processing, vegetable oil processing and other industries

  • Product introduction
  • Technical advantages
Introduction

water tube boiler superheater have a three-pass round coil structure. A conical coil is used for the effective protection of the furnace wall at the boiler end. This product is equipped with an advanced combustion device and is fully automated in operation. After the burner ignites the fuel, flame fills the round coil tubes and transfers heat by radiation through the tube wall (first pass). The high temperature flue gas gathers at the back door and then turns to the convection tubes section (second pass), where heat transfer takes place by convection. The flue gas gradually cools down here and flows to the front door, where it is reversed and goes into the third pass. After that, it enters into the chimney through the economizer and is released into the atmosphere.


water tube boiler superheater.This type of heater is delivered as a whole, and is installed on site, it only needs to connect thermal gas(oil) piping and electricity to start operation. The heater has four heating areas: furnace radiation heating area, the first convection tube bundle heating area, the second convection tube bundle heating area and economizer (waste heat boiler).

Digitized manufacture
  • The laying-off of steel tube adopts CNC 3D laser cutting machine.
  • The manufacture of round coil tube adopts CNC coil tube automatic production line. Once-forming and no need for plastic .
Full argon arc welding
  • The tube butt adopts argon arc welding technique and the seams will be done x ray real-time imaging, preventing unqualified seams from entering coil production line .
Easy operation
  • Heater is wholly assembled before delivery, it is easy for installation, debugging and operating.
  • Fully automatic operating, burning, liquid level of high level tank, outlet temperature and flow rate are adjusted automatically and self-protected.
  • The inlet and outlet with end flanges and flanged cover structure facilitate the installation and layout of tubeline in boiler house.
Less fuel consumption
  • Internal side adopts good insulation material, outside uses stainless steel plate, which can mostly reduce heat lost and make working environment better.
  • Multilayers closely spaced tube bundle and steel rod is used to seal and fix, completely eradicating short circuit of flue gas.
  • Before delivery, the residue moisture is removed completely, so the system draining period is reduced to 2 days from 12 days.
Safely operation
  • The inner coil tube has bigger flow rate, so it is more stable under high temperature operation.
  • Conical coil effectively protects the furnace wall at the end of heater and burner on the top.
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Chapter 14 - Boiler System Failures | SU

Most water-bearing tubes used in boiler construction are fabricated from low-carbon steel. However, steam-bearing (superheater and reheater) tubes are commonly fabricated from low-alloy steel containing differing levels of chromium and molybdenum. Chromium and molybdenum increase the oxidation and creep resistance of the steel.

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Finding the Root Cause of Boiler Tube Failures - babcock.c

Furnace water wall tubes can also fail from long-term overheat. In the case of water wall tubes, the tube temperature increases abnormally, most commonly from waterside problems such as deposits, scale, or restricted flow. In the case of either superheater or water wall tubes, eventual failure is by creep rupture.

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Superheater - Wikiped

A convection superheater is located in the convective zone of the furnace usually ahead of economizer ( in the path of the hot flue gases). These are also called primary superheaters. A separately fired superheater is a superheater that is placed outside the main boiler, which has its own separate combustion system.

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Superheater tubes for boilers — Sandvik Materials Technolo

Sandvik superheater tube and reheater tube materials cover all types of fuel, such as coal, gas, oil, black liquor and biomass. The Sandvik program also includes composite tubes consisting of two different alloys fully bonded together.. Increased efficiency in coal-fired power boilers

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Superheater Inspection in Marine Boile

The superheater is supplied with saturated steam from the steam drum. Here the water vapor is removed; the steam pressure remaining constant whilst the temperature is increased to make it suitable for use in high pressure steam turbines. Superheater inspection in marine water tube boilers is mandatory to ensure the hanging bracket bolting is secure and outside of the tubes …

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Water Tube Boiler Parts and Functions - Boilersin

What is a water tube boiler? Water tube boilers were developed for a variety of reasons, including the need for higher steam pressures, higher steam generation rate, superheated steam. these types of boilers have quicker response to load changes. We briefly discuss about Water tube boiler parts and functions.

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WATER TUBE BOILER THERMODYNAMIC - BOILER DESIGN

D-type water tube boiler with superheater and economizer INTRODUCTION The procedure shown below is next to all needed to successfully use the software to calculate heat transfer in WATER TUBE boiler.

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Boiler Economizers | CBW Industrial Boiler Waste Hea

Yes, although they are sized differently on hot water vs. steam boilers. Normally due to their high flow rate, boiler economizers are designed for this flow imbalance. Still, efficiency gains in the range of 2 – 5% are possible. CBW’s boiler economizers come standard with SA178 Grade A carbon steel boiler tubes.

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Water-tube boiler - Wikiped

A high pressure watertube boiler (also spelled water-tube and water tube) is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating tubes.

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Boiler Tube Failures - eecpowerindia.c

are open to surface in boiler tubes and attachments joints. Oxide scale measurement: Oxide scale formation inside the tubes of RH and final super heaters where steam touches 540 deg. C is a temperature phenomenon. Liner relationship exists between the thickness of oxide scale and temp & …

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Steam Superheater in Boiler: Role, Benefits, Type

Mar 21, 2018 · In case of water tube boilers, hot gases will provide the required temperature to produce superheated steam and superheater may be an additional part of the furnace area. In other cases, separately fired superheater may be required because gas turbine produced gases are relatively cool. Boiler Superheater’s Manufacturing

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